gimp/libgimpwidgets/gimpenumlabel.c

227 lines
6.1 KiB
C

/* LIBGIMP - The GIMP Library
* Copyright (C) 1995-1997 Peter Mattis and Spencer Kimball
*
* gimpenumlabel.c
* Copyright (C) 2005 Sven Neumann <sven@gimp.org>
*
* This library is free software: you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 3 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library. If not, see
* <https://www.gnu.org/licenses/>.
*/
#include "config.h"
#include <gtk/gtk.h>
#include "libgimpbase/gimpbase.h"
#include "gimpwidgetstypes.h"
#include "gimpenumlabel.h"
/**
* SECTION: gimpenumlabel
* @title: GimpEnumLabel
* @short_description: A #GtkLabel subclass that displays an enum value.
*
* A #GtkLabel subclass that displays an enum value.
**/
enum
{
PROP_0,
PROP_ENUM_TYPE,
PROP_ENUM_VALUE
};
struct _GimpEnumLabel
{
GtkLabel parent_instance;
GEnumClass *enum_class;
};
static void gimp_enum_label_finalize (GObject *object);
static void gimp_enum_label_get_property (GObject *object,
guint property_id,
GValue *value,
GParamSpec *pspec);
static void gimp_enum_label_set_property (GObject *object,
guint property_id,
const GValue *value,
GParamSpec *pspec);
G_DEFINE_TYPE (GimpEnumLabel, gimp_enum_label, GTK_TYPE_LABEL)
#define parent_class gimp_enum_label_parent_class
static void
gimp_enum_label_class_init (GimpEnumLabelClass *klass)
{
GObjectClass *object_class = G_OBJECT_CLASS (klass);
object_class->finalize = gimp_enum_label_finalize;
object_class->get_property = gimp_enum_label_get_property;
object_class->set_property = gimp_enum_label_set_property;
/**
* GimpEnumLabel:enum-type:
*
* The #GType of the enum.
*
* Since: 2.8
**/
g_object_class_install_property (object_class, PROP_ENUM_TYPE,
g_param_spec_gtype ("enum-type",
"Enum Type",
"The type of the displayed enum",
G_TYPE_NONE,
GIMP_PARAM_READWRITE |
G_PARAM_CONSTRUCT_ONLY));
/**
* GimpEnumLabel:enum-value:
*
* The value to display.
*
* Since: 2.8
**/
g_object_class_install_property (object_class, PROP_ENUM_VALUE,
g_param_spec_int ("enum-value",
"Enum Value",
"The enum value to display",
G_MININT, G_MAXINT, 0,
GIMP_PARAM_WRITABLE |
G_PARAM_CONSTRUCT));
}
static void
gimp_enum_label_init (GimpEnumLabel *enum_label)
{
}
static void
gimp_enum_label_finalize (GObject *object)
{
GimpEnumLabel *label = GIMP_ENUM_LABEL (object);
g_clear_pointer (&label->enum_class, g_type_class_unref);
G_OBJECT_CLASS (parent_class)->finalize (object);
}
static void
gimp_enum_label_get_property (GObject *object,
guint property_id,
GValue *value,
GParamSpec *pspec)
{
GimpEnumLabel *label = GIMP_ENUM_LABEL (object);
switch (property_id)
{
case PROP_ENUM_TYPE:
if (label->enum_class)
g_value_set_gtype (value, G_TYPE_FROM_CLASS (label->enum_class));
else
g_value_set_gtype (value, G_TYPE_NONE);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
break;
}
}
static void
gimp_enum_label_set_property (GObject *object,
guint property_id,
const GValue *value,
GParamSpec *pspec)
{
GimpEnumLabel *label = GIMP_ENUM_LABEL (object);
switch (property_id)
{
case PROP_ENUM_TYPE:
label->enum_class = g_type_class_ref (g_value_get_gtype (value));
break;
case PROP_ENUM_VALUE:
gimp_enum_label_set_value (label, g_value_get_int (value));
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
break;
}
}
/**
* gimp_enum_label_new:
* @enum_type: the #GType of an enum
* @value: an enum value
*
* Returns: a new #GimpEnumLabel.
*
* Since: 2.4
**/
GtkWidget *
gimp_enum_label_new (GType enum_type,
gint value)
{
g_return_val_if_fail (G_TYPE_IS_ENUM (enum_type), NULL);
return g_object_new (GIMP_TYPE_ENUM_LABEL,
"enum-type", enum_type,
"enum-value", value,
NULL);
}
/**
* gimp_enum_label_set_value
* @label: a #GimpEnumLabel
* @value: an enum value
*
* Since: 2.4
**/
void
gimp_enum_label_set_value (GimpEnumLabel *label,
gint value)
{
const gchar *nick;
const gchar *desc;
g_return_if_fail (GIMP_IS_ENUM_LABEL (label));
if (! gimp_enum_get_value (G_TYPE_FROM_CLASS (label->enum_class), value,
NULL, &nick, &desc, NULL))
{
g_warning ("%s: %d is not valid for enum of type '%s'",
G_STRLOC, value,
g_type_name (G_TYPE_FROM_CLASS (label->enum_class)));
return;
}
if (! desc)
desc = nick;
gtk_label_set_text (GTK_LABEL (label), desc);
}